I'm attempting to install Cloudera 6 as a single-node on Centos 7 using VMWare Workstation 12 for learning and POC purposes.   However, I'm running into heartbeat issues.  Initially I get an error saying...   [30/Sep/2018 21:55:05 +0000] 24667 MainThread agent ERROR Heartbeating to cloudera6.localdomain:7182 failed. Traceback (most recent call last): File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1371, in _send_heartbeat response = self.requestor.request('heartbeat', heartbeat_data) File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/avro/ipc.py", line 141, in request return self.issue_request(call_request, message_name, request_datum) File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/avro/ipc.py", line 254, in issue_request call_response = self.transceiver.transceive(call_request) File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/avro/ipc.py", line 483, in transceive result = self.read_framed_message() File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/avro/ipc.py", line 489, in read_framed_message framed_message = response_reader.read_framed_message() File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/avro/ipc.py", line 417, in read_framed_message raise ConnectionClosedException("Reader read 0 bytes.") ConnectionClosedException: Reader read 0 bytes.   The install program said...   If Use TLS Encryption for Agents is enabled in Cloudera Manager (Administration -> Settings -> Security), ensure that /etc/cloudera-scm-agent/config.ini has use_tls=1 on the host being added.   I updated the config.ini file, now I'm getting a slightly different error...   [01/Oct/2018 00:23:22 +0000] 27314 MainThread agent ERROR Heartbeating to cloudera6.localdomain:7182 failed. Traceback (most recent call last): File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1362, in _send_heartbeat self.cfg.max_cert_depth) File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/https.py", line 139, in __init__ self.conn.connect() File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/M2Crypto/httpslib.py", line 80, in connect sock.connect((self.host, self.port)) File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/M2Crypto/SSL/Connection.py", line 304, in connect ret = self.connect_ssl() File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/M2Crypto/SSL/Connection.py", line 291, in connect_ssl return m2.ssl_connect(self.ssl, self._timeout) SSLError: sslv3 alert bad certificate   The message just repeats continuously.  The SSLError seems to be a new error compared to the original error.   I've tried this a few times, and figured I'd try to match my configuration to what I see in the QuickStart VMs.  My Hosts files is:   127.0.0.1 cloudera6.localdomain cloudera6 localhost localhost.localdomain ::1 localhost localhost.localdomain   The hostname file is : cloudera6.localdomain   Any recommendations on what I should do next?   Thanks W.D.   ... View more

I downloaded the latest version of the HDP Sandbox last night, version 2.6.4, for VMWare. When I started it up it gets stuck at "Waiting for Ambari Agent to connect." How can I get this to start, or do I have to wait for a fix release? ... View more

I'm interested in learning Spark, but I'm of the impression that it would be better to focus on learning based upon Spark 2, instead of Spark 1.x.     Spark 1.6 is part of the current Quickstart VM (v5.12), but I was wondering if it was possible to install Spark 2 instead?  I migrated to Parcels and enabled Cloudera Manager on the Quickstart VM, but I don't see Spark 2.    Is there a way of installing Spark 2 on the Quickstart VM? ... View more